Pin Hole Photography and Gelatin Silver Prints

		PINHOLE PHOTOGRAPHY AND GELATIN SILVER PRINTS. William Brower. In this lab, the fundamentals of the photographic printmaking process were tested. A gelatin silver print was successfully made from a photo taken with a homemade, light-sealed pinhole camera. Additionally, dilutions of 1 percent and 0.1 percent solutions of thiosulfate fixer were exhausted with silver particles to test their capacities. The process of serial dilution was used to make the two fixer solutions, and they were each tested with twenty 3 x 3 cm squares of photo paper in the darkroom. The two dilutions did not contain a high enough concentration of thiosulfate to successfully fix any of the squares tested and remove excess silver particles, evident in the pink tint seen after remaining silver particles were exposed to light. However, a gradient can be seen in the results that suggest a gradual exhaustion of the fix bath occurred, as opposed to exhaustion happening at one specific point. This can be applied to the darkroom process by understanding how the fix bath exhausts, and when this gradual process begins to actually damage prints being made. Keywords: pinhole photography, gelatin silver prints, sodium thiosulfate, fixer, photographic paper Figure 1
		Figure 2 Figure 3

Figure 4

Citations:
Dvoracek, N. (n.d.). PinholePhotography. uwosh.edu. Retrieved February 15, 2012, from http://idea.uwosh.edu/nick/Pinholephoto.pdf

Woodworth, C. (n.d.). How Photographic Film Works. Home | The University of North Carolina at Chapel Hill. Retrieved February 15, 2012, from http://www.unc.edu/~jimlee/film.htm



Figure 1: Pinhole Camera Apparatus
Figure 2: Positive Contact Print
Figure 3: Gradient of fix bath exhaustion
Figure 4: First and last piece of photo paper comparison, trial 2
Woodworth, C. (n.d.). How Photographic Film Works. Home | The University of North Carolina at Chapel Hill//. Retrieved February 15, 2012, from http://www.unc.edu/~jimlee/film.htm